package com.tm.method1;

/**
 * 2024/5/16 Cjj 15:56  oop面向对象
 */
public class Test {
    public static void main(String[] args) {
        User user1 = new User();
        User user2 = new User();
        User user3 = new User();
        User user4 = new User();

        System.out.println(User.number);
    }
}
